A:
Positive:
1 x 7174712055 x 14349424111 x 6522465555 x 13044931401 x 17892052005 x 3578414411 x 16265522055 x 32531
Negative:
-1 x -717471205-5 x -143494241-11 x -65224655-55 x -13044931-401 x -1789205-2005 x -357841-4411 x -162655-22055 x -32531
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 717,471,205, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 717,471,205 | |
| -1 | -717,471,205 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 717,471,205.
Example:
1 x 717,471,205 = 717,471,205
and
-1 x -717,471,205 = 717,471,205
Notice both answers equal 717,471,205
With that explanation out of the way, let's continue. Next, we take the number 717,471,205 and divide it by 2:
717,471,205 ÷ 2 = 358,735,602.5
If the quotient is a whole number, then 2 and 358,735,602.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 717,471,205 | |
| -1 | -717,471,205 |
Now, we try dividing 717,471,205 by 3:
717,471,205 ÷ 3 = 239,157,068.3333
If the quotient is a whole number, then 3 and 239,157,068.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 717,471,205 | |
| -1 | -717,471,205 |
Let's try dividing by 4:
717,471,205 ÷ 4 = 179,367,801.25
If the quotient is a whole number, then 4 and 179,367,801.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 717,471,205 | |
| -1 | 717,471,205 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 401 | 2,005 | 4,411 | 22,055 | 32,531 | 162,655 | 357,841 | 1,789,205 | 13,044,931 | 65,224,655 | 143,494,241 | 717,471,205 |
| -1 | -5 | -11 | -55 | -401 | -2,005 | -4,411 | -22,055 | -32,531 | -162,655 | -357,841 | -1,789,205 | -13,044,931 | -65,224,655 | -143,494,241 | -717,471,205 |
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